Nitrous Express Assassin Plate Conversion 4500 ProPower(100-500HP)

SKU: NEXNX678

Powersports Nitrous Conversion and Upgrade Kits

NEX Nitrous Injection Plates...

Nitrous Express

Nitrous Express Assassin Plate Conversion 4500 ProPower(100-500HP)

SKU: NEXNX678

Powersports Nitrous Conversion and Upgrade Kits

NEX Nitrous Injection Plates...

Sale ends in Calculating... Thu 15 Oct, 11:08 pm AEST

Special Order. Contact for ETA. This item is out of stock in our warehouse and partner distribution centres. In some cases, this may be due to not having live inventory feeds available for all suppliers. Please contact us before ordering if you need to meet a specific deadline.

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Description

Nitrous Express Assassin plate conversion ProPower kits provide superior distribution and outstanding atomization. With no spray bars to sag, split, block airflow, or damage, these NX billet plate conversion ProPower kits are truly the next generation in nitrous plate technology. The Assassin is the most technically advanced single stage plate ever designed. The CNC-machined design integrates the nitrous and fuel discharge ports into the outer perimeter. These plate conversion ProPower kits offer a unique perimeter spray pattern that assures perfect nitrous-fuel distribution, which in turn solves the problems commonly found on single plane manifolds, particularly small and big block Fords.

Assassin plate conversion ProPower kits include:

* Nitrous Assassin billet plate with black anodized finish
* Stainless braided lines
* Jetting from (100-500 hp)
* Carb Studs

Product Overview

Nitrous Express Assassin Plate Conversion 4500 ProPower(100-500HP)

Features and Benefits

4500 Assassin Plate Conversion

Product Details


Description:	Nitrous Oxide Injector Plate
Part Number:	nexNX678
Prop 65 (C, R or CR):	CR
Prop 65 - Short Label:	prop65_warning.jpg
Prop 65 Yes/No:	Yes
WARNING CA Proposition 65 Message:	WARNING: Cancer and Reproductive Harm-www.P65Warnings.ca.gov
WARNING CA Proposition 65:	Yes

Part Type

Powersports Nitrous Conversion and Upgrade Kits

Data: v4.2 - Upd: 2026-10-14 20:10:16

Features

4500 Assassin Plate Conversion

Specifications

Product Attributes - Brand: Nitrous Express (NX)
Product Attributes - Manufacturer's Part Number: NX678
Product Attributes - Part Type: Powersports Nitrous Conversion and Upgrade Kits
Product Attributes - Product Line: Nitrous Express Assassin Plate Conversion ProPower Kits
Product Attributes - UPC: 653374979894
Product Attributes - Quantity: Sold as a kit.
Product Attributes - Notes: For use with 4500 carburetors.

Reference Information

Brand Name/s	Nitrous Express
StreetFX SKU	nexNX678
SFX Item ID	4126919
Supplier Item Code	4126919
Manufacturer SKU	NX678
Manufacturer UPC	653374979894
Alternative References	ProPower(100-500HP)